-/*
- * sgen-gc.c: Simple generational GC.
+/**
+ * \file
+ * Simple generational GC.
*
* Author:
* Paolo Molaro (lupus@ximian.com)
#include "mono/sgen/sgen-protocol.h"
#include "mono/sgen/sgen-memory-governor.h"
#include "mono/sgen/sgen-hash-table.h"
-#include "mono/sgen/sgen-cardtable.h"
#include "mono/sgen/sgen-pinning.h"
#include "mono/sgen/sgen-workers.h"
#include "mono/sgen/sgen-client.h"
}
static void
-gray_queue_enable_redirect (SgenGrayQueue *queue)
+gray_queue_redirect (SgenGrayQueue *queue)
{
SGEN_ASSERT (0, concurrent_collection_in_progress, "Where are we redirecting the gray queue to, without a concurrent collection?");
- sgen_gray_queue_set_alloc_prepare (queue, sgen_workers_take_from_queue_and_awake);
- sgen_workers_take_from_queue_and_awake (queue);
+ sgen_workers_take_from_queue (queue);
}
void
gboolean
sgen_drain_gray_stack (ScanCopyContext ctx)
{
- ScanObjectFunc scan_func = ctx.ops->scan_object;
- SgenGrayQueue *queue = ctx.queue;
+ SGEN_ASSERT (0, ctx.ops->drain_gray_stack, "Why do we have a scan/copy context with a missing drain gray stack function?");
- if (ctx.ops->drain_gray_stack)
- return ctx.ops->drain_gray_stack (queue);
-
- for (;;) {
- GCObject *obj;
- SgenDescriptor desc;
- GRAY_OBJECT_DEQUEUE (queue, &obj, &desc);
- if (!obj)
- return TRUE;
- SGEN_LOG (9, "Precise gray object scan %p (%s)", obj, sgen_client_vtable_get_name (SGEN_LOAD_VTABLE (obj)));
- scan_func (obj, desc, queue);
- }
- return FALSE;
+ return ctx.ops->drain_gray_stack (ctx.queue);
}
/*
safe_object_get_size (obj_to_pin));
pin_object (obj_to_pin);
- GRAY_OBJECT_ENQUEUE (queue, obj_to_pin, desc);
+ GRAY_OBJECT_ENQUEUE_SERIAL (queue, obj_to_pin, desc);
sgen_pin_stats_register_object (obj_to_pin, GENERATION_NURSERY);
definitely_pinned [count] = obj_to_pin;
count++;
++objects_pinned;
sgen_pin_stats_register_object (object, GENERATION_NURSERY);
- GRAY_OBJECT_ENQUEUE (queue, object, sgen_obj_get_descriptor_safe (object));
+ GRAY_OBJECT_ENQUEUE_SERIAL (queue, object, sgen_obj_get_descriptor_safe (object));
}
/* Sort the addresses in array in increasing order.
precisely_scan_objects_from (void** start_root, void** end_root, char* n_start, char *n_end, SgenDescriptor desc, ScanCopyContext ctx)
{
CopyOrMarkObjectFunc copy_func = ctx.ops->copy_or_mark_object;
+ ScanPtrFieldFunc scan_field_func = ctx.ops->scan_ptr_field;
SgenGrayQueue *queue = ctx.queue;
switch (desc & ROOT_DESC_TYPE_MASK) {
}
break;
}
+ case ROOT_DESC_VECTOR: {
+ void **p;
+
+ for (p = start_root; p < end_root; p++) {
+ if (*p)
+ scan_field_func (NULL, (GCObject**)p, queue);
+ }
+ break;
+ }
case ROOT_DESC_USER: {
SgenUserRootMarkFunc marker = sgen_get_user_descriptor_func (desc);
marker (start_root, single_arg_user_copy_or_mark, &ctx);
SgenGrayQueue *gc_thread_gray_queue;
} ScanJob;
+typedef struct {
+ ScanJob scan_job;
+ int job_index;
+} ParallelScanJob;
+
static ScanCopyContext
scan_copy_context_for_scan_job (void *worker_data_untyped, ScanJob *job)
{
static void
job_scan_major_mod_union_card_table (void *worker_data_untyped, SgenThreadPoolJob *job)
{
- ScanJob *job_data = (ScanJob*)job;
- ScanCopyContext ctx = scan_copy_context_for_scan_job (worker_data_untyped, job_data);
+ ParallelScanJob *job_data = (ParallelScanJob*)job;
+ ScanCopyContext ctx = scan_copy_context_for_scan_job (worker_data_untyped, (ScanJob*)job_data);
g_assert (concurrent_collection_in_progress);
- major_collector.scan_card_table (CARDTABLE_SCAN_MOD_UNION, ctx);
+ major_collector.scan_card_table (CARDTABLE_SCAN_MOD_UNION, ctx, job_data->job_index, sgen_workers_get_job_split_count ());
}
static void
job_scan_los_mod_union_card_table (void *worker_data_untyped, SgenThreadPoolJob *job)
{
- ScanJob *job_data = (ScanJob*)job;
- ScanCopyContext ctx = scan_copy_context_for_scan_job (worker_data_untyped, job_data);
+ ParallelScanJob *job_data = (ParallelScanJob*)job;
+ ScanCopyContext ctx = scan_copy_context_for_scan_job (worker_data_untyped, (ScanJob*)job_data);
+
+ g_assert (concurrent_collection_in_progress);
+ sgen_los_scan_card_table (CARDTABLE_SCAN_MOD_UNION, ctx, job_data->job_index, sgen_workers_get_job_split_count ());
+}
+
+static void
+job_major_mod_union_preclean (void *worker_data_untyped, SgenThreadPoolJob *job)
+{
+ ParallelScanJob *job_data = (ParallelScanJob*)job;
+ ScanCopyContext ctx = scan_copy_context_for_scan_job (worker_data_untyped, (ScanJob*)job_data);
+
+ g_assert (concurrent_collection_in_progress);
+
+ major_collector.scan_card_table (CARDTABLE_SCAN_MOD_UNION_PRECLEAN, ctx, job_data->job_index, sgen_workers_get_job_split_count ());
+}
+
+static void
+job_los_mod_union_preclean (void *worker_data_untyped, SgenThreadPoolJob *job)
+{
+ ParallelScanJob *job_data = (ParallelScanJob*)job;
+ ScanCopyContext ctx = scan_copy_context_for_scan_job (worker_data_untyped, (ScanJob*)job_data);
g_assert (concurrent_collection_in_progress);
- sgen_los_scan_card_table (CARDTABLE_SCAN_MOD_UNION, ctx);
+
+ sgen_los_scan_card_table (CARDTABLE_SCAN_MOD_UNION_PRECLEAN, ctx, job_data->job_index, sgen_workers_get_job_split_count ());
}
static void
-job_mod_union_preclean (void *worker_data_untyped, SgenThreadPoolJob *job)
+job_scan_last_pinned (void *worker_data_untyped, SgenThreadPoolJob *job)
{
ScanJob *job_data = (ScanJob*)job;
ScanCopyContext ctx = scan_copy_context_for_scan_job (worker_data_untyped, job_data);
g_assert (concurrent_collection_in_progress);
- major_collector.scan_card_table (CARDTABLE_SCAN_MOD_UNION_PRECLEAN, ctx);
- sgen_los_scan_card_table (CARDTABLE_SCAN_MOD_UNION_PRECLEAN, ctx);
-
sgen_scan_pin_queue_objects (ctx);
}
+static void
+workers_finish_callback (void)
+{
+ ParallelScanJob *psj;
+ ScanJob *sj;
+ int split_count = sgen_workers_get_job_split_count ();
+ int i;
+ /* Mod union preclean jobs */
+ for (i = 0; i < split_count; i++) {
+ psj = (ParallelScanJob*)sgen_thread_pool_job_alloc ("preclean major mod union cardtable", job_major_mod_union_preclean, sizeof (ParallelScanJob));
+ psj->scan_job.ops = sgen_workers_get_idle_func_object_ops ();
+ psj->scan_job.gc_thread_gray_queue = NULL;
+ psj->job_index = i;
+ sgen_workers_enqueue_job (&psj->scan_job.job, TRUE);
+ }
+
+ for (i = 0; i < split_count; i++) {
+ psj = (ParallelScanJob*)sgen_thread_pool_job_alloc ("preclean los mod union cardtable", job_los_mod_union_preclean, sizeof (ParallelScanJob));
+ psj->scan_job.ops = sgen_workers_get_idle_func_object_ops ();
+ psj->scan_job.gc_thread_gray_queue = NULL;
+ psj->job_index = i;
+ sgen_workers_enqueue_job (&psj->scan_job.job, TRUE);
+ }
+
+ sj = (ScanJob*)sgen_thread_pool_job_alloc ("scan last pinned", job_scan_last_pinned, sizeof (ScanJob));
+ sj->ops = sgen_workers_get_idle_func_object_ops ();
+ sj->gc_thread_gray_queue = NULL;
+ sgen_workers_enqueue_job (&sj->job, TRUE);
+}
+
static void
init_gray_queue (SgenGrayQueue *gc_thread_gray_queue, gboolean use_workers)
{
scrrj->root_type = ROOT_TYPE_NORMAL;
sgen_workers_enqueue_job (&scrrj->scan_job.job, enqueue);
- scrrj = (ScanFromRegisteredRootsJob*)sgen_thread_pool_job_alloc ("scan from registered roots wbarrier", job_scan_from_registered_roots, sizeof (ScanFromRegisteredRootsJob));
- scrrj->scan_job.ops = ops;
- scrrj->scan_job.gc_thread_gray_queue = gc_thread_gray_queue;
- scrrj->heap_start = heap_start;
- scrrj->heap_end = heap_end;
- scrrj->root_type = ROOT_TYPE_WBARRIER;
- sgen_workers_enqueue_job (&scrrj->scan_job.job, enqueue);
+ if (current_collection_generation == GENERATION_OLD) {
+ /* During minors we scan the cardtable for these roots instead */
+ scrrj = (ScanFromRegisteredRootsJob*)sgen_thread_pool_job_alloc ("scan from registered roots wbarrier", job_scan_from_registered_roots, sizeof (ScanFromRegisteredRootsJob));
+ scrrj->scan_job.ops = ops;
+ scrrj->scan_job.gc_thread_gray_queue = gc_thread_gray_queue;
+ scrrj->heap_start = heap_start;
+ scrrj->heap_end = heap_end;
+ scrrj->root_type = ROOT_TYPE_WBARRIER;
+ sgen_workers_enqueue_job (&scrrj->scan_job.job, enqueue);
+ }
/* Threads */
} CopyOrMarkFromRootsMode;
static void
-major_copy_or_mark_from_roots (SgenGrayQueue *gc_thread_gray_queue, size_t *old_next_pin_slot, CopyOrMarkFromRootsMode mode, SgenObjectOperations *object_ops)
+major_copy_or_mark_from_roots (SgenGrayQueue *gc_thread_gray_queue, size_t *old_next_pin_slot, CopyOrMarkFromRootsMode mode, SgenObjectOperations *object_ops_nopar, SgenObjectOperations *object_ops_par)
{
LOSObject *bigobj;
TV_DECLARE (atv);
*/
char *heap_start = NULL;
char *heap_end = (char*)-1;
- ScanCopyContext ctx = CONTEXT_FROM_OBJECT_OPERATIONS (object_ops, gc_thread_gray_queue);
+ ScanCopyContext ctx = CONTEXT_FROM_OBJECT_OPERATIONS (object_ops_nopar, gc_thread_gray_queue);
gboolean concurrent = mode != COPY_OR_MARK_FROM_ROOTS_SERIAL;
SGEN_ASSERT (0, !!concurrent == !!concurrent_collection_in_progress, "We've been called with the wrong mode.");
}
sgen_los_pin_object (bigobj->data);
if (SGEN_OBJECT_HAS_REFERENCES (bigobj->data))
- GRAY_OBJECT_ENQUEUE (gc_thread_gray_queue, bigobj->data, sgen_obj_get_descriptor ((GCObject*)bigobj->data));
+ GRAY_OBJECT_ENQUEUE_SERIAL (gc_thread_gray_queue, bigobj->data, sgen_obj_get_descriptor ((GCObject*)bigobj->data));
sgen_pin_stats_register_object (bigobj->data, GENERATION_OLD);
SGEN_LOG (6, "Marked large object %p (%s) size: %lu from roots", bigobj->data,
sgen_client_vtable_get_name (SGEN_LOAD_VTABLE (bigobj->data)),
SGEN_ASSERT (0, sgen_workers_all_done (), "Why are the workers not done when we start or finish a major collection?");
if (mode == COPY_OR_MARK_FROM_ROOTS_FINISH_CONCURRENT) {
+ sgen_workers_set_num_active_workers (0);
if (sgen_workers_have_idle_work ()) {
/*
* We force the finish of the worker with the new object ops context
* which can also do copying. We need to have finished pinning.
*/
- sgen_workers_start_all_workers (object_ops, NULL);
+ sgen_workers_start_all_workers (object_ops_nopar, object_ops_par, NULL);
+
sgen_workers_join ();
}
}
sgen_client_collecting_major_3 (&fin_ready_queue, &critical_fin_queue);
- enqueue_scan_from_roots_jobs (gc_thread_gray_queue, heap_start, heap_end, object_ops, FALSE);
+ enqueue_scan_from_roots_jobs (gc_thread_gray_queue, heap_start, heap_end, object_ops_nopar, FALSE);
TV_GETTIME (btv);
time_major_scan_roots += TV_ELAPSED (atv, btv);
* the roots.
*/
if (mode == COPY_OR_MARK_FROM_ROOTS_START_CONCURRENT) {
+ sgen_workers_set_num_active_workers (1);
+ gray_queue_redirect (gc_thread_gray_queue);
if (precleaning_enabled) {
- ScanJob *sj;
- /* Mod union preclean job */
- sj = (ScanJob*)sgen_thread_pool_job_alloc ("preclean mod union cardtable", job_mod_union_preclean, sizeof (ScanJob));
- sj->ops = object_ops;
- sj->gc_thread_gray_queue = NULL;
- sgen_workers_start_all_workers (object_ops, &sj->job);
+ sgen_workers_start_all_workers (object_ops_nopar, object_ops_par, workers_finish_callback);
} else {
- sgen_workers_start_all_workers (object_ops, NULL);
+ sgen_workers_start_all_workers (object_ops_nopar, object_ops_par, NULL);
}
- gray_queue_enable_redirect (gc_thread_gray_queue);
}
if (mode == COPY_OR_MARK_FROM_ROOTS_FINISH_CONCURRENT) {
- ScanJob *sj;
+ int i, split_count = sgen_workers_get_job_split_count ();
+
+ gray_queue_redirect (gc_thread_gray_queue);
/* Mod union card table */
- sj = (ScanJob*)sgen_thread_pool_job_alloc ("scan mod union cardtable", job_scan_major_mod_union_card_table, sizeof (ScanJob));
- sj->ops = object_ops;
- sj->gc_thread_gray_queue = gc_thread_gray_queue;
- sgen_workers_enqueue_job (&sj->job, FALSE);
-
- sj = (ScanJob*)sgen_thread_pool_job_alloc ("scan LOS mod union cardtable", job_scan_los_mod_union_card_table, sizeof (ScanJob));
- sj->ops = object_ops;
- sj->gc_thread_gray_queue = gc_thread_gray_queue;
- sgen_workers_enqueue_job (&sj->job, FALSE);
-
- TV_GETTIME (atv);
- time_major_scan_mod_union += TV_ELAPSED (btv, atv);
+ for (i = 0; i < split_count; i++) {
+ ParallelScanJob *psj;
+
+ psj = (ParallelScanJob*)sgen_thread_pool_job_alloc ("scan mod union cardtable", job_scan_major_mod_union_card_table, sizeof (ParallelScanJob));
+ psj->scan_job.ops = object_ops_par ? object_ops_par : object_ops_nopar;
+ psj->scan_job.gc_thread_gray_queue = NULL;
+ psj->job_index = i;
+ sgen_workers_enqueue_job (&psj->scan_job.job, TRUE);
+
+ psj = (ParallelScanJob*)sgen_thread_pool_job_alloc ("scan LOS mod union cardtable", job_scan_los_mod_union_card_table, sizeof (ParallelScanJob));
+ psj->scan_job.ops = object_ops_par ? object_ops_par : object_ops_nopar;
+ psj->scan_job.gc_thread_gray_queue = NULL;
+ psj->job_index = i;
+ sgen_workers_enqueue_job (&psj->scan_job.job, TRUE);
+ }
+
+ /*
+ * If we enqueue a job while workers are running we need to sgen_workers_ensure_awake
+ * in order to make sure that we are running the idle func and draining all worker
+ * gray queues. The operation of starting workers implies this, so we start them after
+ * in order to avoid doing this operation twice. The workers will drain the main gray
+ * stack that contained roots and pinned objects and also scan the mod union card
+ * table.
+ */
+ sgen_workers_start_all_workers (object_ops_nopar, object_ops_par, NULL);
+ sgen_workers_join ();
}
sgen_pin_stats_report ();
static void
major_start_collection (SgenGrayQueue *gc_thread_gray_queue, const char *reason, gboolean concurrent, size_t *old_next_pin_slot)
{
- SgenObjectOperations *object_ops;
+ SgenObjectOperations *object_ops_nopar, *object_ops_par = NULL;
binary_protocol_collection_begin (gc_stats.major_gc_count, GENERATION_OLD);
g_assert (major_collector.is_concurrent);
concurrent_collection_in_progress = TRUE;
- object_ops = &major_collector.major_ops_concurrent_start;
+ object_ops_nopar = &major_collector.major_ops_concurrent_start;
+ if (major_collector.is_parallel)
+ object_ops_par = &major_collector.major_ops_conc_par_start;
+
} else {
- object_ops = &major_collector.major_ops_serial;
+ object_ops_nopar = &major_collector.major_ops_serial;
}
reset_pinned_from_failed_allocation ();
if (major_collector.start_major_collection)
major_collector.start_major_collection ();
- major_copy_or_mark_from_roots (gc_thread_gray_queue, old_next_pin_slot, concurrent ? COPY_OR_MARK_FROM_ROOTS_START_CONCURRENT : COPY_OR_MARK_FROM_ROOTS_SERIAL, object_ops);
+ major_copy_or_mark_from_roots (gc_thread_gray_queue, old_next_pin_slot, concurrent ? COPY_OR_MARK_FROM_ROOTS_START_CONCURRENT : COPY_OR_MARK_FROM_ROOTS_SERIAL, object_ops_nopar, object_ops_par);
}
static void
major_finish_collection (SgenGrayQueue *gc_thread_gray_queue, const char *reason, gboolean is_overflow, size_t old_next_pin_slot, gboolean forced)
{
ScannedObjectCounts counts;
- SgenObjectOperations *object_ops;
+ SgenObjectOperations *object_ops_nopar;
mword fragment_total;
TV_DECLARE (atv);
TV_DECLARE (btv);
TV_GETTIME (btv);
if (concurrent_collection_in_progress) {
- object_ops = &major_collector.major_ops_concurrent_finish;
+ SgenObjectOperations *object_ops_par = NULL;
- major_copy_or_mark_from_roots (gc_thread_gray_queue, NULL, COPY_OR_MARK_FROM_ROOTS_FINISH_CONCURRENT, object_ops);
+ object_ops_nopar = &major_collector.major_ops_concurrent_finish;
+ if (major_collector.is_parallel)
+ object_ops_par = &major_collector.major_ops_conc_par_finish;
+
+ major_copy_or_mark_from_roots (gc_thread_gray_queue, NULL, COPY_OR_MARK_FROM_ROOTS_FINISH_CONCURRENT, object_ops_nopar, object_ops_par);
#ifdef SGEN_DEBUG_INTERNAL_ALLOC
main_gc_thread = NULL;
#endif
} else {
- object_ops = &major_collector.major_ops_serial;
+ object_ops_nopar = &major_collector.major_ops_serial;
}
sgen_workers_assert_gray_queue_is_empty ();
- finish_gray_stack (GENERATION_OLD, CONTEXT_FROM_OBJECT_OPERATIONS (object_ops, gc_thread_gray_queue));
+ finish_gray_stack (GENERATION_OLD, CONTEXT_FROM_OBJECT_OPERATIONS (object_ops_nopar, gc_thread_gray_queue));
TV_GETTIME (atv);
time_major_finish_gray_stack += TV_ELAPSED (btv, atv);
UNLOCK_GC;
}
+void
+sgen_wbroots_iterate_live_block_ranges (sgen_cardtable_block_callback cb)
+{
+ void **start_root;
+ RootRecord *root;
+ SGEN_HASH_TABLE_FOREACH (&roots_hash [ROOT_TYPE_WBARRIER], void **, start_root, RootRecord *, root) {
+ cb ((mword)start_root, (mword)root->end_root - (mword)start_root);
+ } SGEN_HASH_TABLE_FOREACH_END;
+}
+
+/* Root equivalent of sgen_client_cardtable_scan_object */
+static void
+sgen_wbroot_scan_card_table (void** start_root, mword size, ScanCopyContext ctx)
+{
+ ScanPtrFieldFunc scan_field_func = ctx.ops->scan_ptr_field;
+ guint8 *card_data = sgen_card_table_get_card_scan_address ((mword)start_root);
+ guint8 *card_base = card_data;
+ mword card_count = sgen_card_table_number_of_cards_in_range ((mword)start_root, size);
+ guint8 *card_data_end = card_data + card_count;
+ mword extra_idx = 0;
+ char *obj_start = sgen_card_table_align_pointer (start_root);
+ char *obj_end = (char*)start_root + size;
+#ifdef SGEN_HAVE_OVERLAPPING_CARDS
+ guint8 *overflow_scan_end = NULL;
+#endif
+
+#ifdef SGEN_HAVE_OVERLAPPING_CARDS
+ /*Check for overflow and if so, setup to scan in two steps*/
+ if (card_data_end >= SGEN_SHADOW_CARDTABLE_END) {
+ overflow_scan_end = sgen_shadow_cardtable + (card_data_end - SGEN_SHADOW_CARDTABLE_END);
+ card_data_end = SGEN_SHADOW_CARDTABLE_END;
+ }
+
+LOOP_HEAD:
+#endif
+
+ card_data = sgen_find_next_card (card_data, card_data_end);
+
+ for (; card_data < card_data_end; card_data = sgen_find_next_card (card_data + 1, card_data_end)) {
+ size_t idx = (card_data - card_base) + extra_idx;
+ char *start = (char*)(obj_start + idx * CARD_SIZE_IN_BYTES);
+ char *card_end = start + CARD_SIZE_IN_BYTES;
+ char *elem = start, *first_elem = start;
+
+ /*
+ * Don't clean first and last card on 32bit systems since they
+ * may also be part from other roots.
+ */
+ if (card_data != card_base && card_data != (card_data_end - 1))
+ sgen_card_table_prepare_card_for_scanning (card_data);
+
+ card_end = MIN (card_end, obj_end);
+
+ if (elem < (char*)start_root)
+ first_elem = elem = (char*)start_root;
+
+ for (; elem < card_end; elem += SIZEOF_VOID_P) {
+ if (*(GCObject**)elem)
+ scan_field_func (NULL, (GCObject**)elem, ctx.queue);
+ }
+
+ binary_protocol_card_scan (first_elem, elem - first_elem);
+ }
+
+#ifdef SGEN_HAVE_OVERLAPPING_CARDS
+ if (overflow_scan_end) {
+ extra_idx = card_data - card_base;
+ card_base = card_data = sgen_shadow_cardtable;
+ card_data_end = overflow_scan_end;
+ overflow_scan_end = NULL;
+ goto LOOP_HEAD;
+ }
+#endif
+}
+
+void
+sgen_wbroots_scan_card_table (ScanCopyContext ctx)
+{
+ void **start_root;
+ RootRecord *root;
+
+ SGEN_HASH_TABLE_FOREACH (&roots_hash [ROOT_TYPE_WBARRIER], void **, start_root, RootRecord *, root) {
+ SGEN_ASSERT (0, (root->root_desc & ROOT_DESC_TYPE_MASK) == ROOT_DESC_VECTOR, "Unsupported root type");
+
+ sgen_wbroot_scan_card_table (start_root, (mword)root->end_root - (mword)start_root, ctx);
+ } SGEN_HASH_TABLE_FOREACH_END;
+}
+
/*
* ######################################################################
* ######## Thread handling (stop/start code)
* the conservative scan, otherwise by the remembered set scan.
*/
+/**
+ * mono_gc_wbarrier_arrayref_copy:
+ */
void
mono_gc_wbarrier_arrayref_copy (gpointer dest_ptr, gpointer src_ptr, int count)
{
remset.wbarrier_arrayref_copy (dest_ptr, src_ptr, count);
}
+/**
+ * mono_gc_wbarrier_generic_nostore:
+ */
void
mono_gc_wbarrier_generic_nostore (gpointer ptr)
{
remset.wbarrier_generic_nostore (ptr);
}
+/**
+ * mono_gc_wbarrier_generic_store:
+ */
void
mono_gc_wbarrier_generic_store (gpointer ptr, GCObject* value)
{
sgen_dummy_use (value);
}
-/* Same as mono_gc_wbarrier_generic_store () but performs the store
+/**
+ * mono_gc_wbarrier_generic_store_atomic:
+ * Same as \c mono_gc_wbarrier_generic_store but performs the store
* as an atomic operation with release semantics.
*/
void
void
sgen_gc_init (void)
{
- const char *env;
+ char *env;
char **opts, **ptr;
char *major_collector_opt = NULL;
char *minor_collector_opt = NULL;
if ((env = g_getenv (MONO_GC_PARAMS_NAME)) || gc_params_options) {
params_opts = g_strdup_printf ("%s,%s", gc_params_options ? gc_params_options : "", env ? env : "");
+ g_free (env);
}
if (params_opts) {
sgen_marksweep_init (&major_collector);
} else if (!strcmp (major_collector_opt, "marksweep-conc")) {
sgen_marksweep_conc_init (&major_collector);
+ } else if (!strcmp (major_collector_opt, "marksweep-conc-par")) {
+ sgen_marksweep_conc_par_init (&major_collector);
} else {
sgen_env_var_error (MONO_GC_PARAMS_NAME, "Using `" DEFAULT_MAJOR_NAME "` instead.", "Unknown major collector `%s'.", major_collector_opt);
goto use_default_major;
if ((env = g_getenv (MONO_GC_DEBUG_NAME)) || gc_debug_options) {
debug_opts = g_strdup_printf ("%s,%s", gc_debug_options ? gc_debug_options : "", env ? env : "");
+ g_free (env);
}
if (debug_opts) {
if (major_collector.post_param_init)
major_collector.post_param_init (&major_collector);
- if (major_collector.needs_thread_pool)
- sgen_workers_init (1);
+ if (major_collector.needs_thread_pool) {
+ int num_workers = 1;
+ if (major_collector.is_parallel) {
+ /* FIXME Detect the number of physical cores, instead of logical */
+ num_workers = mono_cpu_count () / 2;
+ if (num_workers < 1)
+ num_workers = 1;
+ }
+ sgen_workers_init (num_workers, (SgenWorkerCallback) major_collector.worker_init_cb);
+ }
sgen_memgov_init (max_heap, soft_limit, debug_print_allowance, allowance_ratio, save_target);
projects / mono.git / blobdiff